Rotatable stool convertible to nonrotatable



Oct. 4, 1955 G. o. TAYLOR I ROTATABLE STOOL CONVERTIBLE TO NON ROTATABLEFiled July 1, 1952 F IG. 2.

FIG. I.

INVENTOR GEO RGE O. TAYLOR ATTORNEY United States Patent ROTATABLE STOQLCONVERTIBLE T0 NONROTATABLE George 0. Taylor, Antlers, Gkla.

Application July 1, 1952, Serial No. 296,539

3 Claims. (Cl. 155-94) This invention relates to a stool andparticularly to a stool which is provided with a universal joint betweenits base and its seat so that a rotary motion is imparted to a personsitting on the stool unless he balances the stool with his legs.

In these days of wars and threats of wars, it is of great importancethat military or civilian sentries or watchmen who guard importantinstallations be fully alert at all times, either against the enemy inthe field or against acts of sabotage behind the lines either in thiscountry or abroad. It is, at the same time, important that the sentrynot become overly tired while on duty at his post.

It is, therefore, one object of this invention to provide a stool for asentry or watchman which will enable him to remain sitting, but yetprevent his becoming too comfortable and falling asleep at his post.

Another object of this invention is to provide a sentry stool which canbe easily adjusted and which is small and light enough to be carriedfrom one place to another as the need arises.

Another object of this invention is to provide a stool which can be usedeither as a sentry stool to prevent the falling asleep of the sentry orwhich, by a simple adjustment, can serve as an ordinary stool.

Other objects of this invention are to provide an improved device of thecharacter described, that is easily and economically produced, which issturdy in construction, and which is highly effective in operation.

With the above and related objects in view, this invention consists inthe details of construction and combination of parts, as will be morefully understood from the following description, when read inconjunction with the accompanying drawing in which:

Fig. 1 is an elevational view of the assembled device.

Fig. 2 is an exploded view of the device shown in Fig. 1.

Fig. 3 is a view taken on the line 33 of Fig. 1.

Fig. 4 is a view taken on the line 44 of Fig. 1.

Fig. 5 is an enlarged detailed view taken on line 5-5 of Fig. 1.

Referring now in greater detail to the drawing wherein similar referencecharacters refer to similar parts, there is shown a base having a stem12 extending therefrom. A ball socket member 14 comprising two sections16 and 18, each of which is formed with a depending portion as at 20 and22, is adapted to be slidably received over the stem 12. Flanges 24 and26 are formed on opposite sides of each section of the socket member,and bolts 28 are adapted to extend through coinciding holes in theseflanges. Washers 30 hold the bolts in place to thereby connect thesections of the socket members to each other and also to ice clamp thesocket member around the stem 12. In order to adjust the height of thesocket member on the stem, it is merely necessary to loosen the bolts,adjust the socket to the required height, and then tighten the boltsagain.

A seat member, generally designated 32, comprises a ball portion 34which, when set into the socket 14 forms a universal ball and socketjoint, a stem 36 integral with the ball 34, and a seat 38 connected tothe stem 36. The seat is attached to the top 40 of the stem 36 by meansof rivets 42. Brace members 44 are connected between the stem and thebottom of the seat for additional support.

A plurality of holes 46 are provided in the socket member and asimilarly arranged plurality of holes 48 are provided in the ball 34.When it is desired to use the stool for a sentry on duty, the ball isleft loose in the socket and this causes the sentry to be forced tobalance the seat with his feet so that if he falls asleep, he will losehis balance and topple over. If it is desired to use the stool forordinary purposes, it is merely necessary to place locking pins or boltsthrough the holes 46 and 48. This locks the ball in one position in thesocket.

Holes 50 and 52 are respectively formed adjacent the top of the socketand in the center of the ball for the purpose of receiving a pintherethrough. Such a pin would lock the ball against any movement in thesocket except a rocking motion on the axis of the pin.

Although this invention has been described in considerable detail, suchdescription is intended as being illustrative rather than limiting,since the invention may be variously embodied, and the scope of theinvention is to be determined as claimed.

What is claimed as the invention is:

l. A seating device comprising a base, a stem mounted on said base, asocket member adjustably secured to said stem, said socket membercomprising two separable, hollow sections, each section consisting of aportion of a hernisphere greater than a quarter from which depends halfa hollow cylinder, and flange means on each of said sections andsecuring means extending through said flange means to connect them toeach other with said depending half hollow cylinders encompassing andadjustably mounted on said base stem, a ball fitted within said socketmember for universal movement therewithin, a stem extending from saidball, and a seat member connected to said ball stem.

2. The device of claim 1 wherein means are provided in the ball and inthe socket to receive locking members for the purpose of locking theball against movement in the socket, and locking members received insaid means.

3. The device of claim 1 wherein alignable openings are provided in theball and in the socket to receive a pin for the purpose of providing anaxis for rocking movement of the ball in the socket, and a pin receivedwithin said openings when aligned.

References Cited in the file of this patent UNITED STATES PATENTS633,021 Mason Sept. 12, 1899 1,124,714 Denning Jan. 12, 1915 1,358,640Koyama Nov. 9, 1920 1,455,441 Hodny May 15, 1923 2,048,148 Stoll July21, 1936

